Stack mover trailer



Sept 4, 1956 F. LAHMAN 2,761,577

STACK MOVER TRAILER Filed Oct. 7, 1954 3 Sheets-Sheet 1 z2 /N/H y? if??512)? Jf m7 INVENTOR.

F. LAHMAN STACK MOVER TRAILER Sept. 4, 1956 3 sheets-sheer 2 Filed OCT..7, 1954 F49 Lw INVENTOR Sept 4, 1956 F. LAHMAN STACK MovER TRAILER 5Sheets-Sheet 3 Filed OCT.. 7, 1954 gg; 3 ff- 7/ IN VEN TOR. 5@ @wwwUnited States Patent O 2,761,571 rsrAoK MOYER TRAlLER Fritz Lahman,jHecla, S. Dak. implication october 7, ,1954, senin Ng. @dass `s claims.(el. 214-506) -My inventionprovides a `novel Land improved strncture`forthe moving of Yhaystacks andthelike.

This :application .-.i's a continuetonfin-part ef rays@- pendingapplication, vSerial No. 384,107, filed pctober f5, 1953, and nowabandoned. t

Thejprimary object .0f my invention SffheKPfQ-"SQH lotion improved-gdevice 4which can .be baokedup ,u ya F,haystacleory theY likeand.which. is provided withhniechani- .,cally driven cable meansiwhich,when yplaced"about the ,stacksmai/.befntilized to-.draw the entirestaeksnnwardiy `:ontoa1 tilted. rack; this rack will then be` raised toassnme horizontal position `for transportingthe 'Starck-tiri any desiredposition` @n.destinaton; andthereaften memset@ `|mended ufer utilizingthe mechanically driven 'able r'neansf. .to rernove the `stools, from.the rack; at the des` ned destination .Anothenobject of..my.i.r1ven,tionliswthe lprovisionof a .dveviceottheclassdescribed wbehlmey.liedetndiably .,seeuredto atractonand whichmay..derve.a.power.fr.omf.sadtrac.tor.

A frueher` object Vet my4` invention .-.is the.provisi,n.r1. of i, adevice. ofthe.class4 described whichlis relative .f pensiveato .producewhich, `is ...easy .to ,onerate .Whisihis rugged.inconstruction and is.extremely durablelhev above., `and` still further objectsivof nyinvention willbecome l apparent vfrom. Ille( tollovvin-g,Afietalllocation, .appended yclaims land; attached .drawings lJbsetlerring .to...the dravvings, wherein Alike L claararqters A.indicatelikepartsithronghout.the seyeralyiews' A`Is=` 1.- isa viewinside-elevation .oilily stack. never showing the samein a stack-loadingposition;

I. E g...2. is. a view corresponding, to Eig.` 1l but; Showing mvstackrrmover ini a stack-carrying. position;

E ig., 3 .isan enlarged view in sideelevationuthe Aload- .jdischarging-,position being. .indieated by,dottd.l1.i11es and f showinggthe rack`clearer intwo positions;

Eig. .4. is `a yiewdn front elevationpf v)the lstructure' shownl in Fig.3 on an cular-ged scale; 4

Fig. 5 is a view in top plan on thesamehscale'asiFig. 3...with I ny.rack clearer. removed;

Fig`A 6 is, a viewintopplan of `the forward half ofthe,-fstructureLshowniin. Fig. 5 .with -someparts being removed and others,partially shown in .dotted lines;

v'Eig. 'Z-,isa ,viewin` `top splan offiny rack. .clearer onlthe.asameiscaleiasfligL 3;,and `rshowing broken awayft-he EAlateral rlimitsofithe staclornover gra'ck;

'l IEigr 8 is an enlarged fragmentary `viewppartlyf in; seetion 'FigJ 10is an enlargedfrgmentary view -in'side-eleyai ein. ,12.is .an .enlarged.central :fiagnieiitary viewilnltiontelevation taken substantially alongline 12'-12 of Fig.

e .ICC

,11? Showing'the .latchns means retaining the Steck .mover rack in thestack-carrying position of Fig. 2; Vand l 13 is a l.fragnjieritary viewpartly in section and eerily inside elevati@ as Seen nn 1in@ '1S-'13 nf.Fie- 12- -Reterfnne -rnnre IPartieillsnfly t the' ,drawings referentienumeral 1,5 indicates, in its entirety, a rack rmade fup of 'a pluralityfof longitiidinally extended, laterally spaced, .parallel gbearns 12.6,preferably I-beams having 'tapered top :gauges vv1'7, .as shown.inpnFiig f9, land:tapered rear ends .1fasshennin Fiss- .1-3s Cross.beams .19 and...20 undef- .lying Iand uextending at right angles to4the parallel beams 1.6.; n transverse snnnnn .2.1" intending between'SS .beams Alg'alldl end-.a iront Plate 2.21 Whslsz, Pfstably nnairsesshown, :aetnrnv'idel t0 nnnnilttllnniek l, 15 for iinove,merit andarefsurrnndel on their top .sides ibo pygsnieilsgs. The wheeiszs aremohrd @n g4 jonrnalled'in ldependingbearing.snpports zsfsecrfed "tobeams] 26 ,extending at right angles'l between crossy .beams 19 andDepending bearing supports `r25 'i provide iinserts'[mounting the rank,1.5 nn axle 2.4 nndvliels for pivotal rocking movement onanaxisparallel to the I.taxis.oft'hewheelsl. Thispermits the pivoting of rack1r1;5 from the horizontal load-carrying"position'fof vFigZ it@ therearwardly inclined :load-.linkin and .sin here@ l.rwsitijon 'QfgFiiaasis .elearly-snnwnkinffnl and @fitted .linssfin Fig-.3-

iReferrins in I.Iis- 6, ,I Pini/ide e. drewnar, indicated .in itsentirety by thennlmeral (QZ: 4comprisingfa fof'lno'r- .ivardlyconverging enjlbers '29".joinin`g with fifwtdly; nnnslishflyunwadli'.attending .siPR-nieglhere .and 51, agktransverlse member i which`overlies forwardly converging membersZS and 29 and isse- "cnredltotheendsof members 30la'nd31 opposite `their i'jiinctlire with meinbersgSand 2,9. y'Adjac ent.thejilncdtiire sends Q2 and 3'3, respectively,v ofthe rdravvbvar "21. Rear .lends l.'Zarid 33 ,arejonrnalledonstnb. shafts35 and .316, lino rlnt'edn4cross beam .119,.tofpivotally rnollut'thedrawbar27 tothelnnderportion of `the rack'1`5 forwardlyvof its axis ofpivotal movement. .ll/leans'.oisistiiigof a tslotted member .37 .havingla .verticallyv-le5itendin'g aper- Ltui 38 .ifs rrlnniited .nf the -nPeX.Of fofwndly' ivegng nia-nnen@ and .291.0 detnennbli' ,Seenr'fhe drnivar:2,7 vtoa rdr'awbar ,1A9ofna` conventional tractor A0see Figs. llandZ.`Airnounting platefll is secbred to said converg- .'i/iigrnernber'szlisand ,2.9 forwardly of saidv transverse fniemb'er 3.4. 4Journalled.in abearing siipportzilifsecired tto the nting plate y.4 1 A is laconventional .winch1s43 having iwinsiins drnnns (4.4. and 4.5. and :a'sprocket jivheel Winch e3 is driven by a .ehnin .entendinsfnnm:sprocketzyvheel ,546 around `a small .dia-rn'gater sprocket heel,47seeured.toar shaft v48 whichzat its opposite end 'onrnallfedforrotation on mountingplate ,41. Adnjaentfend-49 isI a sprocket.wheelSD connected by chain 5.51 with a sprocket ,wheelllcarried by ashafty 53; moniited for rotatienon plate il kand adapted tobevoperatively .'gqnnetedito thepower takeoffishaft `54 of ltheatrac-t`orv`Referringfgin particular to Figi. 12,*transversen'1l`ember ;34Loftbe"draw-'bar 27..is adapted to underlieithefront meende rack 1,51vv atiright angles tothe parallelbearns 16 l,when rw 15 is the load-carryingposition. Latching .inseetcd 'in 'itssntirety byV the .reference.nnlne'al 55,` extendsv between the transverse. memberl34fai1d `thegfrgntendofrack 1S to retainthefrack :'15 fin its. load- |`oarr ingyposition until freleased'. vLatcliiiig"v'means 155 comprises Lia.,shaft `56l fjpurnalled Tfr 'rotation:byv "spaced bearing brackets 57which are secured to the;l transverse rnerrrberm Secured to theshaft-'Srforlmoveirient gege.tornar"illy` enrendins-lile9kefs5 @al1-olf'rack.. l5? ,Elements 58 ...are .ed into 'ent with brackets 59 by atorsionjspi-ing'f() coiled around the shaft 56, having its intermediateportion enga-ged on a stop pin 61 thereon and having its free ends 62 inengagement with the top llange of transverse member 34. One end of theshaft 56 is formed as a handle 63 for disengaging elements 58 from thebrackets 59.

A rack clearer, designated in its entirety by the numeral 64, is mountedon the upper surface of rack 15 for sliding movements from a normalposition overlying the front end, as shown in full lines in Fig. 5, to aposition rearwardly of the wheels 23 .as shown in dotted lines in Fig.3. Rack clearer 64 comprises a rod 65 overlying said rack and extendingat right angles to parallel beams 16 beyond the lateral limits of therack 15. Depending bosses 66 are carried by rod 65 adjacent its outerends and are positioned outside the lateral limits of the rack 15 andengage the outer edges of the outer beams 16 to prevent lateral shiftingof the rack clearer 64 and `to guide it for longitudinal slidingmovements on the rack 15. An arcuate-shaped frame structure 67 issecured at its ends 68 and 69 to the rod 65 and also secured by lbraces70 extending horizontally therebetween. The frame structure 67 curvesforwardly from the rod 65 and extends vertically upwardly from thehorizontal plane of the rack 15. Frame structure 67 is adapted toembrace a haystack or the like to eifectively discharge it `from therack 15 at any desired position. An important feature of my rack clearer64 is the fact that it extends transversely across the entire width ofthe rack 15 so that it can easily and effectively clear the entire rack15 of all material that it might be carrying by a single rearwardmovement thereof.

A resilient latching means 71, see Fig. 10, is secured -to the outermostbeams 16 on each side of .the rack 15 adjacent fr out palte 22 and isadapted to engage the rod 65 to yieldingly maintain the rack clearer 64in its normal position overlying the front end of the rack 15. Resilientlatching means 71 comprises a U-shaped support 72 and a resilientlatching member 73 fixed thereto at its end 74. Latching member 73opposite end 74 is formed with a downwardly recurved end 75, andintermediate ends 74 and 75 is secured to support 72 for limited upwardpivotal movement about its end 74 against the bias of a spring 76.

Cable means 77 and 78 are associated with winding drums 44 and 45,respectively, of the winch 43 lto move a haystack or the like onto therack 15 and also to move the rack clearer 64 from its normal position toits rearward position beyond the pivotal mounting of the rack 15.Horizontally positioned sheaves 79 and 80 are carried at opposite endsof the transverse member 34, beyond the lateral limits of rack 15 andapproximately coplanar with the axis of rotation of the winch 43, onpins 81 secured to brackets 812. Sheaves 79 and 80 and rollers 83 and84, positioned behind the sheaves 79 and 80, are adapted to direct andguide the cable means 77 and 78, respectively. Vertically extendingsheaves 85 and 86 are positioned rearwardly of the cross beam 20 andextend beyond the lateral limits of the rack 15. Sheaves 85 and 86comprise means for guiding the .cable j means 77 and 78 in a directionto selective-ly cause rearward rack clearing movements to be imparted tothe rack clearer 64. It is important that the sheaves 79, 80, 85 `and 86are all positioned beyond the lateral limits of the rack 15 so that thecable means 'I7 and 78 will 65 the tractor 40. My stack mover is thenmoved by the tractor 40 adjacent the haystack to be moved. Latchingmeans 55 is released. through the handle 63 which disengages elements 58from the brackets 59. Rear- -ward movement of the tractor 4) in thedirection of the: haystack to be moved will cause a rearward .tiltingmove-- ment of the rack 15 until the tapered ends 18 of thef parallelbeams 16 come into engagement with the* ground. This is the rearwardlyinclined load-pickup po sition of the stack mover. Thereafter, sucienlamounts of the cable means 77 and 78 are unreeled from the winch 43 tocause the free ends thereof to be joined at the rear end of thehaystack. The cable means 77 and 78 are directed and guided by sheaves79 and 80 and rollers 83 and 84 and each encompass an opposite side ofthe haystack and form a loop therearound. Preferably, a relatively widebeam 89 is placed between the looped cable means 77 and 78 and thehaystack to increase t-he pulling surface exerted by the cables.Finally, when rotary winding movements are imparted to the winch `43through shafts 48 and 53 and power takeoff shaft 54, the cable means 77and 78 will be wound about their respective winding drums 44 `and 45 andmy stack mover will be relatively moved under the haystack as shown inFig. l `and the haystack will then be lmoved from the position of Fig. 1to the position of Fig. 2. The tapered top flanges 17 of the parallelbeams 16, as clearly shown in Fig. 9, facilitate the loading of thehaystack by decreasing the ifrictional surface of the rack 15. As therack 15 is caused, under the weight of the haystack, to .assume itsnormal load-carrying position shown in Fig. 2, the latching elements 58of latching means 55 will .automatically overlie the brackets 59 tomaintain the loaded rack 15 in its load-carrying position.

When it is desired `to unload the haystack from the rack 15, cablemeans77 and 78 are caused to pass over sheaves and 86, respectively, and thefree ends thereof are secured to hooks 87 and 88, respectively; andlatching means 55 is released. Winding movements of the winch 43 willcause rod 65 of the rack clearer 64 :to move rearwardly from under theyielding bias of end 75 of latching member 73; and the rack clearer willbe moved rearwardly to assume the rearward dotted line :position of Fig.3. The rearward movement of the hay- ;stack will cause rack 15 to tiltto the load-discharge position of Fig. 3 and a sulicient portion of thehaystack will come into engagement with the ground so as to enable ltheltractor 40 to pull the tilted rack 15 free of the haystack.

My invention has been suiiciently tested and found to be entirelysatisfactory. It will be obvious to those skilled in the art that myinvention may be modified by many substitutions and equivalents and thatthis disclosure is intended to be illustrative only. Therefore, I intendto be limited Isolely by the scope of the appended claims.

What I claim is:

l. In a device of the class described, a wheel mounted rack having frontland rear end portions, said rack comprising a plurality oflongitudinally extended laterally spaced parallel beams having taperedrear ends and beveled top flanges, wheels mounting said rack, pivotalmounting means intermediate said end portions mounting said rack forpivotal rocking movements about a substantially horizontal axis from asubstantially horizontal load-carrying position to a rearwardlydownwardly tilted load-pickup and discharge position, sa transverselyextended rack clearer projecting above the plane of said rack andmounted thereon for sliding movements from a normal position overlyingthe front end thereof to a position rearwardly of said pivotal mountingmeans, a drawbrar acting frame pivotally secured at one end thereof tothe under portion of said rack forward of said pivotal mounting meansand extending forwardly therefrom beyond the front end portion of therack, securing means on *tbe-other end ofsaid frame adapted todetachably secure same to a .prime mover "locking, means between theforwardend ofsa'idrackl and an intermediate portionof said'freinet-for',retaining said rack in its load-carrying posi- 1tionj, -aYwinch mounted on said frame intermediate the ends thereof, cable meanscarried byvsaid win-ch extending outwardfl)r and rearwardly of the rack:and adapted to .encircle the baseportion -of a load' and` pull sameonto said ,rack nnd'erwaction of said `winch when `said rack. is in itsrear- Wardl'y downwardly tilted position, 'said winch being disposed onsaid Yframe below the front end portion of Vsaid rack during therearwardly downwardly tilted position wherebysaid cable mea-nswillextend substantially horizontally to engage the base portion of aload to be pulled on said rack, means for detachably securing said cablemeans-to `said clearer, and vmeans guiding said cable :meanssin adirection .t .selectively vcause rearward rackclear-ing; movements Ato.be imparted 1to= said clearer.

2. In atdevice of the class described, a wheelmounted rack havingfrontandrearend portions, pivotal mounting means intermediate said endportions mounting said rack for .pivotal rocking vmovements about -asubstantially horizontalfaxisffrom a substantially horizontalload-carrying position to a rearwardly downwardly tilted load-pickup anddischarge position, a transversely extended rack clearer projectingabove the plane of said nack and mounted thereon for sliding movementsfrom a normal position overlying the front end thereof to a positionrearwardly of said pivotal mounting means, a drawbar acting framepivotally secured at one end thereof to the under portion of said rackforwardly of said pivotal mounting means and extending forwardlytherefrom beyond the forward end portion of said rack, securing means onthe other end of said frame adapted to detachably secure same to a primemover, an intermediate portion of said frame consisting of a transversemember having opposite ends projecting laterally outwardly beyond theopposite sides of said rack, locking means between the forward end ofsaid rack and said transverse member for retaining said rack in itsload-carrying position until released, a winch mounted on said frameintermediate the ends thereof, cable means carried by Isaid winch,sheaves carried by the opposite ends of said transverse member forguiding said cable means, said cable means extending outwardly andrearwardly of the rack and adapted to encircle the base portion of :aload and pull the same onto said rack under action of said winch whensaid rack is in its .rearwardly downwardly tilted position, said winchbeing disposed on said frame below the front end portion of said rackduring the rearwardly downwardly tilted position whereby said cablemeans will extend substantially horizontally to engage the base portionof a load to be pulled on said rack, means for detachably securing saidcable means to said clearer, and means guiding said cable means in a`direction to selectively cause rearward rack- I clearing movements tobe imparted to said clearer.

3` The structure defined in :claim l wherein said drawbar acting framecomprises a pair of forwardly converging members pivotally secured attheir rear ends to the under portion of said rack forwardly of saidpivotal mounting means therefor, and a transverse member supported bysaid converging members underlying the front end of said rack when saidrack is in the load-carrying position and extending at right angles tosaid parallel beam-s laterally outwardly beyond the opposite sides ofsaid rack, and in further combination with sheaves carried by theopposite ends of said transverse member for guiding said cable means.

4. The Istructure defined in claim l wherein lsaid rack clearercomprises a rod having a length at least as great Ias said rackoverlying said rack at right angles to said panallel beams, dependingbosses carried by said rod adjacent the outer ends thereof and beyondthe lateral limits of said rack, and `an arcuate shaped frame structuresecured to said rod |and curving forwardly from the ends t 6 thereof,said arcuate shaped Vframe structure extending vertically upwardly fromthe lhorizontal ,plane of said rack; and wherein said means fordetachably securing Said cable means to said clearer comprise hooksprojecting laterally outwardly from theends of said rod.

5,. In a device ofthe class described, a rack; Wheels mounting saidrack; means mounting said rack on ,Said wheels intermediate the frontand rear ends of said rack for pivotal rocking movements `on an axisparallel to 4the laxis of said wheels from a horizontal load-,carryingposi tion tc :a rearwardly tilted load-pickup and discharge lposition; adrawbar comprising a lpair of forwardly conveigP ying members pivotallysecured at their rear ends to Ithe under portion of said rack forwardlyof said lpivotal mounting means therefor, means on the forwardlend ofsaid drawbar :adjacent the juncture of said converging members fordetachably securing said drawbar to a tractor, and a transverse memberoverlying said converging members and carried thereby land underlyingthe front end of said rack when said rack is in the load-carryingposition, saidA ,transverse member extending at right angles .to saidparallel beams laterally outwardly 'beyond the opposite sides of saidrack; latch Ymeans between said transverse member rand the forward endof said rack biased into latching relationship for retaining said rackin its load-carrying position until released; a mounting plate securedto said converging members forwardly of said transverse member; a winchjournlalled on said mounting plate for rotation; cable means associatedwith said winch; horizontally positioned sheaves carried by the oppositeends of said transverse member beyond the lateral limits of said racksubstantially coplan'ar with the axis of rotation of said winch forguiding said cable means; a transversely extended rack clearerprojecting above the plane of said rack and mounted thereon for slidingmovements from a normal position overlying the front end thereof to aposition rearwardly of said pivotal mounting means comprising a rodhaving a length at least Ias great :as said rack overlying said rack atright angles to said parallel beams, depending bosses carried by saidrod adjacent the outer ends thereof and beyond the lateral limits ofsaid rack, and an arcuate-shaped frame structure secured to said rod andcurving forwardly from the ends thereof, said frame structure extendingvertically upwardly from the horizontal plane of said rack; a resilientlatching means yieldingly maintaining said rack :clearer in its normalposition; hooks projecting laterally outwardly from the ends of said rodfor detachably securing said cable means to said clearer; and verticallyextending sheaves positioned on opposite sides of said rack Iandprojecting laterally outwardly beyond the limits thereof rearwardly ofthe axis of pivotal movement of said rack, said last-mentioned sheavespositioned for guiding said cable means in a direction to selectivelycause rearward rack clearing movements to be imparted to said clearerwhen said cable means is secured to the hooks of Isaid clearer; wherebysaid cable means are adapted to operably engage a stack and pull thesame onto said rack under action of said winch when said rack is in itsrearwardly tilted position and to operably engage said rack clearer tomove the same under action of said winch from its normal positionrearwardly to remove the stack from the rack.

6. ln a device of the class described, a wheel mounted rack having frontand rear end portions, pivotal mounting means intermediate said endportions mounting the rack for pivotal rocking movements about asubstantially horizontal axis from a substantially horizontal load-carnsaid frame adapted to detachably secure same to a prime mover, a winchmounted on said frame intermediate the ends thereof, cable means carriedby said winch extending outwardly and rearwardly of the rack and adaptedto encircle the base portion of a load and pull same on to 'said rackunder faction of the winch when said rack is in the rearwardlydownwardly tilted position, said winch being disposed on said framebelow the front end portion of said rack during the rearwardlydownwardly tilted position whereby ysaid cable means will extendsubstantially horizontally to engage the base portion of la load to bepulled on said rack, a rack clearer on thc rack adapted to be operablysecured to said cable means to remove a load from the rack, and lockingmeans forward of said pivotal mounting means retaining said rack in saidload carrying position during the transportation o f a load.

7. The structure defined in claim 6, wherein said drawbar acting frameincludes a transverse member having the opposite ends projectinglaterally outwardly beyond opposite sides of the rack, and sheave meanscarried by the opposite ends of said member guiding said cable meanstoward the rear end portion of the rack.

8. The Istructure defined in claim 7, wherein said rack clearer extendstransversely of the -rack a distance at least as great as the width ofthe yrack and projects above the plane thereof, means slidably mountingIsaid clearer on said rack for movements thereon between a normalposition overlying the front end portion thereof to a rack clearedposition rearwardly of `said pivotal mounting, and guide means for saidcable means selectively directing said rack clearer in the rearward rackcleared position, said guide means comprising sheave means on oppositesides of said rack disposed below the plane thereof and lrearwardly ofsaid pivotal mounting means, and securing means for releasably securingsaid cable means to said clearer comprising hooks projecting outwardlyfrom oppos-ite ends of `said clearer.

References Cited in the tile of this patent UNITED STATES PATENTS1,941,400 Johnson Dec. 26, 1933 2,121,153 Konicek .lune 21, 19382,316,707. McDaniel Apr. 13, 1943 2,411,183 Baldwin Nov. 19, 1946FOREIGN PATENTS 189,969 Great Britain Dec. 14, 1922 585,726 GreatBritain Feb. 21, 1947

